The couple, who first said "I Do" in front of hundreds of guests in Malibu on Jan. 10, 2009, wed again with just the two of them and a minister outside Santa Barbara, Calif.

"It was a total surprise for Fergie," a source tells Us. Duhamel, 37, whisked Fergie, 34, away via private helicopter from Los Angeles to the resort town (where Oprah Winfrey has a home), according to RadarOnline.com, which first reported the news. There, a limo was waiting to bring the couple -- who first began dating in 2004 -- to the luxe Bacara Resort & Spa, located about 20 minutes away.

During their 15-minute ceremony, held on a bluff overlooking the ocean, Fergie was "crying and very emotional," a source tells Radar. Another insider describes the moment to Us as "really romantic, great views of the Pacific, sunset ceremony." Afterward, the couple had a romantic dinner at the resort's upscale Miro eatery.

"They had the whole restaurant to themselves and left before the first customers came in," a source tells Radar.

Following the meal, the couple left hand-in-hand to return to the helicopter, which flew them back to Los Angeles. Fergie and Duhamel's first year of marriage has been rocky. In November, a stripper named Nicole Forrester alleged they carried on an affair while he was shooting the comedy "Life As We Know It in Atlanta," a claim both Fergie and Duhamel have denied. A source tells the new issue of Us Weekly that the incident actually made their marriage stronger.